INFO: Sharing Menus Between MDI Child Windows

   class CSharedDocTemplate : public CMultiDocTemplate
   {
     public:
       CSharedDocTemplate(UINT nIDResource, CRuntimeClass* pDocClass,
           CRuntimeClass* pFrameClass, CRuntimeClass* pViewClass);

       virtual ~CSharedDocTemplate();
   };

   CSharedDocTemplate::CSharedDocTemplate(UINT nIDResource,
     CRuntimeClass* pDocClass, CRuntimeClass* pFrameClass,
     CRuntimeClass* pViewClass) : CMultiDocTemplate(nIDResource, pDocClass,
                                    pFrameClass, pViewClass)
   {
   }

   CSharedDocTemplate::~CSharedDocTemplate()
   {
     // This prevents the base class virtual destructor from
     // destroying the menu resource (i.e. its checks to make
     // sure the handle isn't NULL)

     m_hMenuShared = NULL;
   }
				

   class CMyApp : public CWinApp
   {
   public:
      HMENU m_ghMenuShared;

      //...
   };
				

   BOOL CMyApp::InitInstance()
   {
      ...

      // New member of CWinApp derived class to store menu handle
      m_ghMenuShared = ::LoadMenu(m_hInstance,
         MAKEINTRESOURCE(IDR_SHAREDMENU));

      CSharedDocTemplate* pDocTemplate;
      pDocTemplate = new CSharedDocTemplate(
                         IDR_MYTYPE,  // No menu resource should exist for
                                      // this ID, the menu is set manually
                         RUNTIME_CLASS(CMDIMyDoc),
                         RUNTIME_CLASS(CMDIChildWnd),
                         RUNTIME_CLASS(CMDIMyView));
      pDocTemplate->m_hMenuShared = m_ghMenuShared;
      AddDocTemplate(pDocTemplate);

      ...
   }
				

   BOOL CMyApp::InitInstance()
   {
      ...

      m_ghMenuShared = ::LoadMenu(m_hInstance,
         MAKEINTRESOURCE(IDR_SHAREDMENU));

      if (!m_templateList.IsEmpty())
      {
         CDocTemplate *pDocTemplate;

         for (POSITION rPos = m_templateList.GetHeadPosition();
            rPos != NULL;)
         {
            pDocTemplate = m_templateList.GetNext(rPos);
            if (pDocTemplate->IsKindOf(RUNTIME_CLASS(CSharedDocTemplate)))
               ((CSharedDocTemplate *)pDocTemplate)->m_hMenuShared =
                                                     m_ghMenuShared;
         }
      }

      ...
   }
				

   int CMyApp::ExitInstance()
   {
      ::DestroyMenu(m_ghMenuShared);
   }